The term Pacific Decadal Oscillation was coined by Fisheries scientist Steven Hare in 1996 as a result of his work on the connections between Alaska salmon production cycles and Pacific climate. The Pacific (Multi)Decadal Oscillation is sort of the big brother of El Niño, the Southern (Pacific) Oscillation (ENSO).

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ThetermPacificDecadalOscillationwascoinedbyFisheriesscientistStevenHarein1996asaresultofhisworkontheconnectionsbetweenAlaskasalmonproductioncyclesandPacificclimate.ThePacific(Multi)DecadalOscillationissortofthebigbrotherofElNiño,theSouthern(Pacific)Oscillation(ENSO).